Experimental testing of journal bearings with two-component surface layer in the presence of an oil abrasive contaminant

The aim of the paper is to present a new design of the two-component surface layer journal and the experimental results indicating usefulness of the new design. The novelty of the design consists of placing soft material stripes on the bearing journal surface and forming microgrooves in the material contact zone. Experiments indicate clearly on the usefulness of the design, especially in the case when oil is contaminated by hard particles. In every stage of testing, the sensitivity to contamination of the bearing with the two-component surface layer journal is about one-fifth that of the case of the conventional bearing.